Finding the Fourth Proportional to 2,330.89, 3,494.25 and 870.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,330.89 : 3,494.25 = 870.11 : x
2. Step 2: Convert to fraction form
   2,330.89/3,494.25 = 870.11/x
3. Step 3: Cross multiply
   2,330.89x = 3,494.25 × 870.11
4. Step 4: Simplify right side
   2,330.89x = 3,040,362.22
5. Step 5: Solve for x
   x = 3,040,362.22/2,330.89
6. Step 6: Final answer
   x = 1,304.38